VITA Standards Organization activity updates

The September VITA Standards Organization (VSO) standards' meeting was held in Huntsville, Alabama. This update is based on the results of that meeting. Contact VITA if you are interested in participating in any of these working groups. Visit the VITA website (http://www.vita.com) for details on upcoming VSO meetings.

Accredited as an American National Standards Institute (ANSI) developer and a submitter of Industry Trade Agreements to the IEC, VITA provides its members with the ability to develop and promote open technology standards. The working groups meet face-to-face every two months to address embedded bus and board industry standards issues.

The following standards have recently received ANSI and VITA accreditation:

  • ANSI/VITA 17.3-2018: Serial Front Panel Data Port (sFPDP) Gen 3.0
  • ANSI/.9-2018: : /XMC Rear I/O Fabric Signal Mapping on 3U and 6U VPX Modules
  • ANSI/.4-2018: VPX REDI: Mechanical Standard Using Liquid Flow Through (LFT) Applied to VPX ANSI/VITA 57.4-2018: +, Mezzanine Card

These standards are available for download by VITA members and is posted at the VITA Store for purchase by non-members.

VSO study and working group activities

Standards within VITA may be initiated through the formation of a study group and developed by a working group. A study group requires the sponsorship of one VITA member, and a working group requires sponsorship of at least three VITA members.

Several working groups have current projects underway; the following roundup summarizes those projects:

VITA 40: Service and Status Indicator Standard

Objective: This standard defines the colors, behaviors, placement, and labeling of service indicator lamps for boards, field replaceable units, and enclosures.

Status: This standard was withdrawn several years ago. VITA has been requested to revive the standard. The original document has been updated to the current format for VITA standards. Minor updates have been made to correct errors in the original document. VITA 40 has been submitted for working group approval to proceed to ANSI balloting.

ANSI/VITA 46.0: VPX: Baseline Standard

Objective: The VITA 46 base standard defines physical features that enable high-speed communication in a compliant system.

Status: The baseline VPX standard is scheduled for its five-year review. The working group is working to align it with recent work on , , and and to add performance enhancements.

ANSI/VITA 47: Environments, Design and Construction, Safety, and Quality for Plug-in Units

Objective: Supplying vendors’ certification of commercial-off-the-shelf (COTS) plug-in units to this standard will facilitate the cost-effective integration of these items into larger systems.

Status: ANSI/VITA 47-2005 (R2007) has been opened for revision to improve interoperability, create less reliance on individual supplier ruggedization guidelines, and make sure environments are concurrent with recent VPX updates. The working group has placed the document in the ANSI ballot stage. The various dot standards are in final working group review.

Several dots standards have been started to support the original VITA 47.0 standard.

VITA 47.1: Defines the requirements common across the family of standards.

VITA 47.2: Defines the unique requirements related to products meant to align with the applications defined in IPC J-STD-001, Class 2.

VITA 47.3: Defines the unique requirements related to products meant to align with the applications defined in IPC J-STD-001, Class 3.

VITA 51.4: Reliability Component Derating

Objective: The goal of this study group is to develop a new component derating standard.

Status: The study group has been meeting to discuss the scope and outline potential sources of data for this activity.

VITA 57.1: FMC, FPGA Mezzanine Card

Objective: This standard describes FMC I/O modules and introduces an electro-mechanical standard that creates a low overhead bridge. This is between the front panel I/O, on the mezzanine module, and an FPGA processing device on the carrier card, which accepts the mezzanine module.

Status: The working group has completed work on a revision to the original VITA 57.1 standard. They are moving to a working group approval ballot.

A new study group has been formed, VITA 57.5 Physical Tools to Aid in FMC+ Development, to define a set of development tools. Interested parties are invited to join this study group.

ANSI/VITA 65: OpenVPX Architectural Framework for VPX

Objective: The architectural framework standard is a living document that is regularly updated with new profile information and corrections.

Status: New profiles based on work with Sensors Open Systems Architecture (SOSA) are being developed.

VITA 66.5: VPX: Optical Interconnect, Spring-Loaded Contact on Backplane

Objective: This document describes an open standard for configuration and interconnect within the structure of VITA 66.0 enabling an interface compatible with VITA 46 containing blind mate optical connectors with fixed contacts on the Plug-In Module and floating displacement on the backplane.

Status: The working group is developing the draft document.

VITA 68.2: VPX: Compliance Channel

Objective: This standard defines a VPX compliance channel including common backplane performance criteria required to support multiple fabric types across a range of defined baud rates. This allows backplane developers to design a backplane that supports required Bit Error Rates (BER) for multiple fabric types. This also allows module developers to design plug-in modules that are interoperable with other modules when used with a compliant backplane.

Status: The working group is updating the draft of this standard.

VITA 78.1: SpaceVPX Lite Systems

Objective: This document leverages the work done on ANSI/VITA 78 to create a standard with an emphasis on 3U module implementations. The most significant change from SpaceVPX is to shift the distribution of utility signals from the SpaceUM to the System Controller to allow a radial distribution of supply power to up to eight payload modules.

Status: The working group has developed a draft document of the standard that is currently under review.

VITA 86: High Voltage Input Sealed Connector Power Supply

Objective: This standard defines an environmentally enhanced connector pair, which is compatible with the pinouts as defined in .0 for power supplies operating in harsh environments operating off of a high voltage input (270VDC). The connector pair features wider separation between input pins and a sealed connection.

Status: The working group is collecting inputs before developing a draft document.

Copies of all standards reaching ANSI recognition are available from the VITA online store (www.vita.com/Purchase). For a more complete list of VITA standards and their status, go to www.vita.com/Standards.